The New York Yankees have bolstered their starting rotation by acquiring Seattle Mariners lefty and Canadian James Paxton in a blockbuster deal Melky Cabrera Jersey , with three prospects headed to the Emerald City.Per Corey Brock of The Athletic, the Mariners are getting prospects Justus Sheffield, Erik Swanson and Don Thompson-Williams.Paxton deal to Yankees is for Sheffield, OF Don Thompson-Williams and RHP Erik Swanson.— Corey Brock (@CoreyBrockMLB) November 19, 2018Paxton - who threw a no-hitter against the Toronto Blue Jays back on May 8 - enjoyed another stellar season on an otherwise mediocre Mariners team. He reached double-digit wins for the second consecutive season, going 11-6 with a 3.76 ERA and 208 strikeouts in 160.1 innings pitched.advertisingPaxton joins a stacked Yankees rotation that propelled them to another playoff spot in 2018, though the Boston Red Sox defeated them in the ALDS. With C.C. Sabathia http://www.whitesoxfanproshop.com/authenti...eppinger-jersey , Masahiro Tanaka and Luis Severino in the fold, New York has arguably the deepest starting rotation in all of baseball now. Credit: Joe Nicholson-USA TODAY SportsAs for the Mariners, trading Paxton appears to be the start of a rebuilding process. Second baseman Robinson Cano has been the subject of trade rumors, though moving out the 36-year-old is easier said than done.Seattle has missed the playoffs every year now since the 2001 season, and despite having a solid core built around Cano, Kyle Seager, Paxton and Felix Hernandez Joe Crede Jersey , they just haven't been able to build up the right group to make a run.advertisingWhat This MeansThe Yankees are now built even further to embark on a championship run - and thus topple the Red Sox in the AL East race. They've stacked up on left-handed pitchers, and Paxton should be a great fit in The Bronx.For the Mariners, they get a nice haul in return for Paxton. Sheffield is one of the top pitching prospects in the game - a player the Yankees refused to move out in previous trades.It's a win-win for both teams, and it's safe to assume it's just the first of many big time moves for the Yankees and Mariners. Manager Dave Roberts led the Los Angeles Dodgers to more World Series appearances in the last three years than the franchise had the previous 34 and will be back for the 2019 campaign.According to Pedro Moura of The Athletic, Dodgers president of baseball operations Andrew Friedman said the team exercised Roberts' option for 2019. He also said the team expects to sign him to a long-term extension as well.This comes after Moura reported on Thursday that Friedman and then-general manager Farhan Zaidi said they expected to have Roberts and the entire coaching staff back for the 2019 campaign.Friedman also told Bill Shaikin of the Los Angeles Times he planned on inking Roberts to a long-term extension.The manager originally had just a $1.1 million option for 2019, per Bob Nightengale of USA Today.Roberts' three years as the Dodgers manager has been defined largely by success with three National League West crowns and a 287-200 record. The team reached the 2016 National League Championship Series, 2017 World Series and 2018 World Series http://www.whitesoxfanproshop.com/authenti...-shields-jersey , although it lost to the eventual champion all three postseasons (Chicago Cubs, Houston Astros and Boston Red Sox).While they haven't gotten over the championship hunt that has haunted them since the 1988 campaign, the Dodgers have been a consistent October force under Roberts' leadership.However, he drew plenty of criticism during the most recent World Series for the way he used his pitching staff in particular. Even the sitting president criticized him as the Red Sox won four of the five games and clinched their fourth title in 15 years.Roberts will have the opportunity to improve on his October performance in 2019 following this deal as Los Angeles looks to move from an annual playoff participant to a champion.